Business phone systems and VoIP in Derry
Alltone Telecoms supplies cloud phone systems, 028 numbers, call answering and business connectivity to companies in Derry and across County Londonderry. Local numbers, UK-based support and no lines to install.
Telecoms for Derry businesses
Customers in County Londonderry recognise the 028 code. Keep it on your adverts and website, and route calls to mobiles, desk phones or our answering team as your day changes.
We set up and support everything remotely, and our services are delivered across Northern Ireland, including calls to and from the Republic of Ireland. Where an engineer visit is needed for broadband, leased lines or cabling, we arrange it through national partners.
Derry at a glance
| Area code | 028 |
|---|---|
| Number format | 028 71xx xxxx |
| County or area | County Londonderry |
| Region | Northern Ireland |
| Freephone and national | 0800, 0808, 0330, 0333 |
Services in Derry
Choose a service to see what is included, or ask us to quote for a complete setup.
- Business VoIP phone systems in DerryCloud phone system with apps, desk phones and a web dashboard.›
- Inbound call management in DerryRoute every incoming call to the right person, team or site.›
- Call answering service in DerryLive UK receptionists who answer in your company name.›
- Outbound calling in DerryShow your business number, record calls and stay within Ofcom rules.›
- Microsoft Teams calling in DerryMake and take real phone calls inside Microsoft Teams.›
- PSTN switch-off migration in DerryMove off analogue and ISDN lines before they are retired.›
- Business broadband in DerryFull fibre and FTTC broadband with static IPs and UK support.›
- Leased lines in DerryDedicated, symmetrical fibre with a fix-time SLA.›
A local 028 number for your business
People are more likely to answer and return calls from a number they recognise. A 028 number gives you a Derry presence on your website, Google Business Profile and adverts, while calls ring whichever phones you choose.
Derry business phone questions
Something else on your mind? Call 020 7112 8558 or send us a message and a telecoms specialist will reply.
What is the area code for Derry?
The area code for Derry is 028. Local numbers are written in the format 028 71xx xxxx. All of Northern Ireland shares the 028 code, with the next two digits identifying the local area.
Can I get a 028 number if my office is not in Derry?
Yes. A virtual 028 number can ring any phone in the UK, which is useful if you serve customers in Derry from another base or work from home. The number should be used for genuine business in or with the Derry area.
Can I keep my existing Derry number if I move to VoIP?
Yes. We port 028 numbers from your current provider to our cloud platform, so you keep your number and stop paying for the old line.
How does the PSTN switch-off affect businesses in Derry?
Openreach is retiring the analogue phone network across the UK, including County Londonderry, with a fixed date of 31 January 2027. Any business in Derry still using analogue or ISDN lines, or devices that depend on them, needs to move to a digital service.
Get a quote for your Derry business
Tell us how your business takes calls today and we will recommend a setup, with a clear monthly price. Most quotes are ready the same day.
- UK-based support team
- Free setup and number porting on most plans
- Monthly rolling options available
- No obligation quote
Prefer to talk? Call 020 7112 8558, Monday to Friday, 9am to 5.30pm.